After an unsuccessful update to Creative Cloud Desktop, Premiere and After Effects have decided they don't want to launch. I had a ticket with the Download and Installation guys which they've decided to close on their own initiative (not mine) because they have decided the issue is After Effects related (!) and therefore not their problem, which is a shame.

Obviously I could hold on the telephone line for the rest of the day listening to seriously irritating music, but I'd rather not if there's any other way.

I just wanted to add that I know Adobe support has come in for a lot of flak, but in this case, although it took quite a while to track down the issue, the response time was very good, the help was very clear and I got the result I needed. The chat support does seem to have improved a lot since the last time I had to use it.